<template>
  <div class="login-container">
    <!-- 导航栏 -->
    <van-nav-bar class="page-nav-bar" title="登录" />
    <!-- /导航栏 -->

    <!-- 登录表单 -->
    <van-form @submit="onSubmit">
      <van-field
      v-model ="user.mobile" 
        name="mobile"
        placeholder="请输入手机号"
        :rules="userFormRules.mobile"
        type="number"
        maxlength="11"
      >
        <i slot="left-icon" class="toutiao toutiao-shouji"></i>
      </van-field>


      
      <van-field
      v-model = "user.code"
        name="code"
        placeholder="请输入验证码"
       :rules="userFormRules.code"
        type="number"
        maxlength="6"
      >
        <i slot="left-icon" class="toutiao toutiao-yanzhengma"></i>
        <template #button>
        <van-count-down
            v-if="isCountDownShow"
            :time="1000 * 60"
            format="ss s"
            @finish="isCountDownShow = false"
          />
          <van-button v-else class="send-sms-btn" round size="small" type="default" @click="onSendSms">发送验证码</van-button>
        </template>
      </van-field>
      <div class="login-btn-wrap">
        <van-button class="login-btn" block type="info" native-type="submit">
          登录
        </van-button>
      </div>
    </van-form>
    <!-- /登录表单 -->
  </div>
</template>
<script>

import { login } from '@/api/user'


export default {
  name: 'LoginIndex',
  components: {},
  props: {},
  data () {
    return {
        user: {
        mobile: '', // 手机号
        code: '' // 验证码
      },
      userFormRules: {
        mobile: [{
          required:true,
          message: '手机号不能为空'
        },
        {
          pattern:  /^1[3|5|7|8]\d{9}$/,
          message: '验证码格式错误'

        }],
          code: [{
          required: true,
          message: '验证码不能为空'
        }, {
          pattern: /^\d{6}$/,
          message: '验证码格式错误'
        }]
      },
       isCountDownShow: false // 是否展示倒计时
    }
  },
  computed: {},
  watch: {},
  created () {},
  mounted () {},
  methods: {
    ...mapMutations(["updateToken"]),
  async onSubmit () {
     // 获取表单数据
     // 表单验证
     // 提交登录请求

     this.$toast.loading({
      message: "登录中",
     duration: 0,
     forbidClick: true
         })
    const user = this.user
    try {
      const res = await login (user)
      console.log('登录成功',res)
      this.$toast.success('登录成功')
      
      this.updateToken(res.data.data)
      } catch (err) {
      if(err.response.status === 400) {
        console.log('登录失败',err);
      }
      else {
          console.log('登录失败，请稍后重试', err)
          this.$toast.fail('登录失败，手机号或验证码错误')
        }
     }
    },
    async onSendSms () {
      // 1. 校验手机号
      try {
        await this.$refs.loginForm.validate('mobile')
      } catch (err) {
        return console.log('验证失败', err)
      }

      // 2. 验证通过，显示倒计时
      this.isCountDownShow = true

      // 3. 请求发送验证码
      try {
        await sendSms(this.user.mobile)
        this.$toast('发送成功')
      } catch (err) {
        // 发送失败，关闭倒计时
        this.isCountDownShow = false
        if (err.response.status === 429) {
          this.$toast('发送太频繁了，请稍后重试')
        } else {
          this.$toast('发送失败，请稍后重试')
        }
      }
    }
  }
}
</script>
<style scoped lang="less">
.login-container {
  .toutiao {
    font-size: 37px;
  }
  .send-sms-btn {
    width: 152px;
    height: 46px;
    line-height: 46px;
    background-color: #ededed;
    font-size: 22px;
    color: #666;
  }
  .login-btn-wrap {
    padding: 53px 33px;
    .login-btn {
      background-color: #6db4fb;
      border: none;
    }
  }
}
</style>